H04N13/307

Direct projection light field display
11536878 · 2022-12-27 · ·

A direct projection light field display comprising an array of projectors for direct projection of a light field. The overall design and incorporation of additional optics achieve the optimal light distribution and small pixel size to produce a high definition, 3D display. The architecture of the direct projection light field display has low a brightness requirement for each projector, resulting in an increased projector density, decreased system, and a decreased power requirement, while producing a high-definition light field.

Stereoscopic display using microLED technology
11531213 · 2022-12-20 · ·

An apparatus and method for displaying an image are disclosed. The apparatus includes independently-controllable microLED unit cells including sets of microLEDs each emitting light and at least one lens to control an emission angle and emission profile of the light emitted by the microLED unit cells. A display controller controls an intensity distribution of the microLED unit cells in accordance with a video data signal such that a first portion of the emitted light is emitted at a first emission angle with a first emission profile and a second portion of the emitted light is emitted at a second emission angle with a second emission profile. The first and second light portions form three-dimensional stereoscopic images.

RELAY SYSTEMS
20220397862 · 2022-12-15 ·

Relay systems may be incorporated into optical systems to direct light from at least one image source to a viewing volume. Light from a plurality of image sources may be directed by relay systems to a viewing volume. Some light from the plurality of image sources may be occluded by an occlusion system to reduce undesirable artifacts in when the relayed light from the plurality of image sources are observed in the viewing volume.

Desktop 3D display system and display method

As disclosed herein, a desktop 3D display system is provided. A 2D image display module is used for receiving and displaying an integral imaging source. A viewing angle guide module is used for guiding light emitted from the integral imaging source. A light modulation module is arranged for modulating the light guided by the viewing angle guide module and reconstructing a 3D image. A rotation module is configured to enable synchronous rotation of the 2D image display module, the view angle guide module and the light modulation module, wherein. A rotation angle speed of the synchronous rotation is associated with the switching speed of the integral imaging source of the 2D image display module. For a 3D image reconstructed in a single visual area range, crosstalk created by the diffuse reflective feature of pixels on a 3D image in other visual areas can be eliminated, thereby improving the viewing experience.

Virtual image display device and head-mounted device

A virtual image display device including a display panel including a plurality of pixels and configured to display an image, a window disposed on the display panel, and a multi-viewpoint layer provided between the display panel and the window, and including a plurality of lenses.

LIGHT FIELD DISPLAY APPARATUS

A device for optical-field displaying includes: a display screen and a lens unit provided on a light exiting side of the display screen; the lens unit includes a plurality of lenses arranged in an array; the display screen is provided on a focal plane of the plurality of lenses; the display screen includes a first substrate and a second substrate that match; the first substrate is a light-exiting-side substrate, the second substrate includes a plurality of pixel islands arranged in an array; the plurality of pixel islands correspond to the plurality of lenses; a view region formed by light rays emitted by the sub-pixels of the pixel islands and propagated via the corresponding lenses to a human eye is smaller than or equal to a half-pupil region, and light rays of different viewpoints emitted by different sub-pixels of the pixel islands enter different cone cells via the lenses.

LIGHT FIELD DISPLAY APPARATUS

A device for optical-field displaying includes: a display screen and a lens unit provided on a light exiting side of the display screen; the lens unit includes a plurality of lenses arranged in an array; the display screen is provided on a focal plane of the plurality of lenses; the display screen includes a first substrate and a second substrate that match; the first substrate is a light-exiting-side substrate, the second substrate includes a plurality of pixel islands arranged in an array; the plurality of pixel islands correspond to the plurality of lenses; a view region formed by light rays emitted by the sub-pixels of the pixel islands and propagated via the corresponding lenses to a human eye is smaller than or equal to a half-pupil region, and light rays of different viewpoints emitted by different sub-pixels of the pixel islands enter different cone cells via the lenses.

GLASSES-FREE LIGHT-FIELD DISPLAY METHOD BASED ON ASYMMETRIC LIGHT DISTRIBUTION OF PROJECTING BEAM
20230059109 · 2023-02-23 · ·

The present invention relates to the field of three-dimensional display technology, and more specifically, to a glasses-free light-field display method based on asymmetric light distribution of a projecting beam. In the method described in this patent application, beam projected by a pixel or a sub-pixel of a display device is guided to the corresponding pixel-viewing-zone or sub-pixel-viewing-zone of an asymmetric shape, by a corresponding modulation element. Based on these asymmetric pixel-viewing-zones or sub-pixel-viewing-zones, viewing zones for different pixel groups or sub-pixel groups are designed with different arrangement densities along different directions, to realize glasses-free light-field display with a reduced number of viewing zones. Time multiplexing is further introduced for presenting more viewing zones.

Light field display device

The present disclosure provides a light field display device. The light field display device includes a plurality of imaging modules. Each of the imaging modules includes a liquid crystal lens array and a display screen, the liquid crystal lens array is disposed on a light exit side of the display screen, and images of the plurality of imaging modules are parallel to each other.

DISPLAY DEVICE AND DRIVING METHOD THEREOF
20230094018 · 2023-03-30 ·

A display device provided by the present disclosure includes: a plurality of display units arranged in an array, wherein each display unit includes m sub-pixels, the m sub-pixels of the display unit are in one-to-one correspondence with m preset viewing areas, and m is an integer greater than or equal to 2; and refraction structures in one-to-one correspondence with the plurality of display units, wherein each refraction structure is located on a light emitting side of a display unit corresponding to the refraction structure, and the refraction structure is configured to refract light emitted from each sub-pixel of a corresponding display unit to a viewing area corresponding to the sub-pixel.